Honestly, I really wanted the Apex Sentinel to empower the bosses to show my damage but they literally all died even without Smite, sucks.

PoB: https://pobb.in/_Po6MhRKJUZ4

PoE profile

poe.ninja

This is a build that's been around for a while now, there's nothing new being used here but I will point out that Malevolence is an insane dps modifier that doesn't show up in PoB or tooltip, you can use /u/Butsicles' simulator to check out the approximate dps gain you get from increasing Spark's duration. This doesn't include the massive QoL you get from it (extended Vaal Haste/Spark letting you just leap slam and clear the whole screen without casting at all, extended Molten Shell/VMS, extended Blessing). Similar can be said for projectile speed, which is why I path to the projectile cluster near Ranger for the more projectile speed mastery. The dps gains are not realized only when the arena is fully open fielded, like Sirus. Even Uber Eater/Exarch have decently sized arenas for Spark duration and projectile speed to impact dps (not to mention you can easily pull the bosses to the wall since they dash).

SoS is used to cap crit without any other investment on the build aside from Bottled Faith, and scorch of course is very nice for penetration purposes (Cold to Fire + Trinity + brittle + scorch is a really nice combo). Personally I've noticed that when projectile speed is high, the reach of Spark is so far that chill/freeze for defensive purposes while mapping is not necessary as I clear the screen instantly. Additionally, I do reach 8% sap on uber bosses which is a nice defense bonus too. Since I no longer need the essence crit mod on gloves, I run Faster Casting instead. Spark feels much better with high amounts of cast speed, and you can easily flood the screen within a second.

There's not much else to be said here that hasn't been covered in other iterations of the aurastacker, but I'd like to highlight that while aura effect isn't quite as necessary as before anymore to cap 90% all resists, it does give you a lot of armor and evasion from Determination/Grace/Defiance Banner which is not something to be taken lightly.